This program is a educational audio frequency tool that works as a quiz. Tap the the button to start the quiz and the program will generate a wave file as a random frequency and play it. You can guess the HZ of the audio. Tap the answer button to show the actual frequency played. The wave frequency is from http://beej.us/blog/data/digital-sound/maketone_c.txt
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(c)1998-2013 Vincent Collura ( Inventor / Engineer )